Plastics and rubber production lines generate constant material flow: film trim, dust-laden regrind, granules, and finished parts, all needing to move without slowing the line down. That regrind also needs dust removed and separated before it re-enters the process, or it carries contamination straight into the next batch. Keeping all of it contained, consistent, and out of the way of operators is where most producers run into friction.
Kongskilde pneumatic conveying and dedusting equipment moves trim, regrind, and finished parts through the process while removing dust and fines before they affect material quality or clog downstream equipment. Systems are built to run continuously around existing granulators, moulding machines, and storage, with routing that keeps material contained and out of the way of operators.
Featured Case Study
Aage Vestergaard Larsen uses Kongskilde equipment to support the conversion of household plastic waste into high-quality recycled pellets. KIA Aspirators remove dust and light contaminants, while MultiEvacuators transport the cleaned and sorted material to the melting stage.
We support a wide range of plastic processors with solutions tailored to their specific processes, challenges, and goals.
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Our experience across the plastics industry becomes a practical advantage for you. From material flow to product quality and process efficiency, we apply proven knowledge to help you solve challenges and achieve reliable results.
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Most polymers used in plastics processing and recycling can be dedusted and conveyed pneumatically.
Kongskilde’s AirWash system is a combined blower and cyclone system that is suitable for many materials including PP, PE, HDPE, PET, ABS, nylon, polystyrene, acrylics, and polycarbonate. KIA aspirators are another solution for dedusting. They remove dust and light impurities from granulated and shredded plastics, including label fragments, during the PET recycling process. Suitability depends on the material’s form and characteristics, with testing available to assess the application. Other materials may be suitable, and testing at our Technology Center can confirm which system is the best solution for your dedusting needs.
Pneumatic conveying moves material through enclosed pipes, reducing manual transfers between production stages. Pipes can be routed horizontally, vertically, and around existing equipment, helping free up floor space and keep material moving through production.
Pneumatic conveying uses air to move material through an enclosed pipe system, which often reduces manual handling, housekeeping, degradation, and contamination compared with mechanical handling. Additionally, since pipes can be routed overhead, it typically requires less floorspace. Kongskilde pneumatic conveying systems are sized to each line and can connect directly to existing production equipment.
Static charge can cause lightweight material and dust to cling to equipment surfaces. Antistatic options and inline ionizers help neutralise these charges. Adhesive waste may require non-stick pipes or specially configured collection equipment to reduce material buildup. The right approach depends on the material and where the problem occurs. The AirWash and CUB offer optional anti-static features, and an inline ionizer is available to neutralize static buildup during conveying.
Kongskilde builds customized systems from a wide catalog of conveying and dedusting equipment, matched to your polymers and production goals. Our Technology Center is available for testing and validation before installation, and our team provides preventative maintenance, spare parts, and support through offices in key regions, along with training and consultation as your process evolves.
Edge trim is extracted directly at the winder or slitter and conveyed away through a pipe system while the line keeps running. Trim can be downsized with cutters in the conveying line and delivered to an air/material separator for disposal, reuse, or recycling, with different materials kept separate. Removing trim at the source frees up floor space and saves operators time by replacing manual trim removal with an automated system.
Plastic edge trim does not always need to be cut before conveying. Venturi systems can convey continuous trim without cutting, while other configurations use inline cutters to downsize it. The approach depends on the material, production speed, and collection requirements.
Yes. A central system can collect film waste from several rewinding or cutting lines and convey it to a shared collection point. System design must account for the machines operating together and the waste each generates.
After separation from the conveying air, film waste can be discharged into a container, baler, or compactor. The arrangement depends on waste volume and how the material will be recycled or disposed of.
Removing dust and fines from plastic regrind reduces clogged loader screens and filters, lowering maintenance and supporting moulding machine uptime. Cleaner regrind blends and melts more consistently, helping reduce rejected parts and visible defects in clear moulded components while limiting dust throughout the plant.
Dust and fines can be removed from regrind with air-based dedusting and separation before the material returns to production. The AirWash is an adjustable combined blower and cyclone that dedusts and conveys pellets, granules, flakes, and regrind in one step. KIA Aspirators are another option to separate dust, fines, and light contaminants such as label fragments from granulated plastics.
Automated conveying feeds material into the optical sorter continuously and consistently, allowing multi-pass sorting to run without manual intervention between cycles. This keeps material quality consistent throughout the process and can be added to an existing facility with minimal structural changes.
Significant energy savings for plastic producers comes from sizing the system to the line’s actual throughput rather than running an oversized setup. Energy use depends on the material, conveying route, required throughput, and equipment selection. Matching blower performance to the application helps avoid unnecessary airflow. Kongskilde engineers evaluate each production line and select blowers and components to match.
